NAME

Apache::Session::Browseable::Postgres - Add index and search methods to Apache::Session::Postgres

SYNOPSIS

Create table with columns for indexed fields. Example for Lemonldap::NG:

CREATE UNLOGGED TABLE sessions (
    id varchar(64) not null primary key,
    a_session text,
    _whatToTrace text,
    _session_kind text,
    _utime bigint,
    ipAddr varchar(64)
);

Add indexes:

CREATE INDEX uid1 ON sessions USING BTREE (_whatToTrace);
CREATE INDEX s1   ON sessions (_session_kind);
CREATE INDEX u1   ON sessions (_utime);
CREATE INDEX ip1  ON sessions USING BTREE (ipAddr);

Use it with Perl:

use Apache::Session::Browseable::Postgres;

my $args = {
     DataSource => 'dbi:Pg:sessions',
     UserName   => $db_user,
     Password   => $db_pass,
     Commit     => 1,

     # Choose your browseable fileds
     Index      => '_whatToTrace _session_kind _utime iAddr',
};

# Use it like Apache::Session
my %session;
tie %session, 'Apache::Session::Browseable::Postgres', $id, $args;
$session{uid} = 'me';
$session{mail} = 'me@me.com';
$session{unindexedField} = 'zz';
untie %session;

# Apache::Session::Browseable add some global class methods
#
# 1) search on a field (indexed or not)
my $hash = Apache::Session::Browseable::Postgres->searchOn( $args, 'uid', 'me' );
foreach my $id (keys %$hash) {
  print $id . ":" . $hash->{$id}->{mail} . "\n";
}

# 2) Parse all sessions
# a. get all sessions
my $hash = Apache::Session::Browseable::Postgres->get_key_from_all_sessions();

# b. get some fields from all sessions
my $hash = Apache::Session::Browseable::Postgres->get_key_from_all_sessions('uid', 'mail')

# c. execute something with datas from each session :
#    Example : get uid and mail if mail domain is
my $hash = Apache::Session::Browseable::Postgres->get_key_from_all_sessions(
            sub {
               my ( $session, $id ) = @_;
               if ( $session->{mail} =~ /mydomain.com$/ ) {
                   return { $session->{uid}, $session->{mail} };
               }
            }
);
foreach my $id (keys %$hash) {
  print $id . ":" . $hash->{$id}->{uid} . "=>" . $hash->{$id}->{mail} . "\n";
}

DESCRIPTION

Apache::Session::Browseable provides some class methods to manipulate all sessions and add the capability to index some fields to make research faster.

Apache::Session::Browseable::Postgres implements it for PosqtgreSQL databases.

SEE ALSO

http://lemonldap-ng.org, Apache::Session::Postgres

AUTHOR

Xavier Guimard, <x.guimard@free.fr>

COPYRIGHT AND LICENSE

Copyright (C) 2009-2017 by Xavier Guimard 2013-2017 by Clément Oudot

This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself, either Perl version 5.10.1 or, at your option, any later version of Perl 5 you may have available.